Bifrost is a decentralized, cross-chain liquid staking protocol operating within the Polkadot ecosystem. It enables users to stake assets from various blockchains and receive corresponding liquid staking derivatives, known as vTokens, which can be utilized across multiple decentralized finance (DeFi) platforms. On the Astar Network, Bifrost offers liquid staking for ASTR tokens, allowing users to stake ASTR and receive vASTR tokens in return. These vASTR tokens maintain liquidity and can be employed in various DeFi applications within the Astar ecosystem.